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Finding the Third Proportional to 118,528 and 261,088

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Solution

The third proportional to 118,528 and 261,088 is: 575,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,528 : 261,088 = 261,088 : x
  2. Step 2: Convert to fraction form
    118,528/261,088 = 261,088/x
  3. Step 3: Cross multiply
    118,528x = 261,088 × 261,088
  4. Step 4: Simplify right side
    118,528x = 68,166,943,744
  5. Step 5: Solve for x
    x = 68,166,943,744/118,528
  6. Step 6: Final answer
    x = 575,112.58

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.